TY - GEN
T1 - Low complexity soft sphere decoding via optimal radius control
AU - Lee, Jaeseok
AU - Shim, Byonghyo
PY - 2010
Y1 - 2010
N2 - In this paper, we present a low-complexity list sphere search algorithm for achieving near-optimal a posteriori (APP) detection in iterative detection and decoding (IDD). Motivated by the fact that the list sphere decoding searching fixed number of lattice points is inefficient in many scenarios, we design a criterion to search lattice points with non-vanishing likelihood and derive the optimal sphere radius satisfying this requirement. Through simulations on realistic IDD systems, we show that the proposed method provides considerable complexity savings while maintaining near-optimal performance.
AB - In this paper, we present a low-complexity list sphere search algorithm for achieving near-optimal a posteriori (APP) detection in iterative detection and decoding (IDD). Motivated by the fact that the list sphere decoding searching fixed number of lattice points is inefficient in many scenarios, we design a criterion to search lattice points with non-vanishing likelihood and derive the optimal sphere radius satisfying this requirement. Through simulations on realistic IDD systems, we show that the proposed method provides considerable complexity savings while maintaining near-optimal performance.
UR - https://www.scopus.com/pages/publications/78751522039
U2 - 10.1109/PIMRC.2010.5671878
DO - 10.1109/PIMRC.2010.5671878
M3 - Conference contribution
AN - SCOPUS:78751522039
SN - 9781424480166
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 414
EP - 418
BT - 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
T2 - 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
Y2 - 26 September 2010 through 30 September 2010
ER -